Machine for boring and mortising



SAMUEL WV. BIDWELL, 0F HARTFORD, CONNECTICUT,

lVIACI-IINIE! FOR BORING AND MRTISING.

Specification of Letters-Patent No. 32,509, dated June 11, 1861.

To all whom #may concern:

Be it known that I, SAMUEL WV. BIDWELL, of Hartford, county ofI-Iartford, and State` of Connecticut, have invented a certain new `anduseful Improvement in Machines for Boring ivood; and I do herebydeclarethat the same is described and represented in" the followingspecification and drawings;` and to enable-others skilled .in the artvtol make and use my said? improvement I lwill proceed to describeitsconstruction and operation, referring tothe drawings, in which thesame letters indicate like. parts in each of" the figures.

Thenatureof this improvement consists in arranging any number ofspindles in a line, upon a proper frame work, and 1n providing therefora proper adjustingdevice so that in adjusting either two of said spin-`dles (in which the bit is secured) at any required distance, from centerto center, the whole number of'spindles by the same operation, will beadjusted to even distances therewith; and it also consists in providingproper means of applying the, driving belt, that the distances of thespindles from center to center may be increased or diminished, withoutchanging the length of the belt- The object desired to be accomplishedby this improvement is to simplify, and at the same time produce amachine more rapid in its operation, and more quickly and easilychanged, as desired, from time to time.

In the accompanying drawings Figure l, is a top view of the machine Fig.2, is a sectional end view.

A, is the frame work.

B, is the head stock, in which the spindle, that holds the bit issecured, as in the ordinary way.

C, is an end section of the bed of the head stock.

a, is the spindle.

is the boring bit.

c, is a pulley secured upon the spindle a.

cl, is the driving belt.

c, is a friction roll, to hold the belt closely upon the pulley c.V

D, is an adjusting guide, or pattern, or it is a double wedged shapeslat, on which a friction pulley f, is secured, and turns on a pivot, onone end of said guide or pattern. The pulley f, is fitted into a recessor groove, shown by dotted lines in the plate E, is a movable platehaving a recess or groove in one side to receive the friction roll ysecured .onone end ofthe pattern D. In

each end `of 4said plate are formed nuts to "receivescrews-.for theVpurpose of moving l it' (with the guide or' pattern D) to or from themachine,` j I QF, `F,"F.," are vgeared shafti'ng one of whichV(thefshaft F) shafts is secured ..length'w'ise of the machinein studs,or boxes g. 'Ihe` other twov are secured, one on one elndof,theinachme,and the othercn the lother end ofthemachine in boxes or studs g, andreceive their motion from the shaft F, by means ofproper gearing, suchas 7L.

Onfthe outer ends of the shafts F are vformed screws, which are fittedinto nuts in the'out'er ends of the, plate E.

-In'the sides of the base of the head l stock B, are formed properprojections, or

inclined planes, similar to and for the guide `r pattern D, to workagainst.

Gr, is a carriage, on which the work is placed and held, to be moved upto the bits when .the machine is ready for operation.

`The headstock B is fastened to the frame work of the machine, while allthe others are fitted to the frame work in a proper and. movable mannerto allow each one separately to move in a parallel Aline toward or fromthe one fixed to the frame work.

The driving belt l passes from the driving pulley over the pulley z', onone of the shafts. F, and over the spindle pulley c, then back over theother pulley e', to the driving pulley again; Y

The several heads" are kept closely together by a yielding pressure,such as a spring Ic, or weights, properly applied thereto for thatpurpose.i v

Now it will be seen that by turning the crank or shaft F', the plate E,will be4 action of the screws on the shafts F, at the same time thepattern D, is moved in the same direction, thereby causing the headstocks B, to move to or from each other in exact distances from centerto center, that is to say, if 'the kfirst two are set two inches fromcenter to center, all the others will be the same distance, and if thefirst are again moved thebthers will move in the same proportion. Thusthe machine may be quickly and easily set to bore any number of holes ateven distances apart, as for blind slats &c. It will also be seen thathowever much they may be moved toward or from each other (the spindle)the length of the belt d remains unchanged, and it may be made more orless taut by the friction rolls e, Which I propose sometimes to makeadjustable, so as to give more or less pres sure on the belt d.

I believe I have shown the construction and the operation of the machineso as to enable a person skilled to make and use the same.

What I claim therefore and desire to secure by Letters Patent isl. Theguide or pattern D, in combination with the plate E, shafts F, and headstocks B,

arranged and operating substantially as 15 and for the purposedescribed.`

2. The arrangement of the pulleys z' belt Z friction rolls e, With thesliding heads B, and pulleys c, substantially as and for the purposedescribed In testimony whereof I have hereunto set my hand and seal this6th day of April 1861.

SAMUEL IV. BIDWVELL.

Witnesses:

EDWARD WV. BLISS, JEREMY WV. BLIss.

